package com.kingsoft.demo.reflection;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class ReflectTester {
	
	public Object copy(Object object) throws Exception {
		
		// 获得对象的类型      
		Class<?> classType = object.getClass();      
		System.out.println("Class:" + classType.getName());      

		//通过默认构造方法创建一个新的对象      
		Object objectCopy = classType.getConstructor(new Class[] {}).newInstance(new Object[] {});      

		// 获得对象的所有属性      
		Field fields[] = classType.getDeclaredFields();      

		for (int i = 0; i < fields.length; i++) {      
			Field field = fields[i];      

			String fieldName = field.getName();      
			String firstLetter = fieldName.substring(0, 1).toUpperCase();      
			// 获得和属性对应的getXXX()方法的名字      
			String getMethodName = "get" + firstLetter + fieldName.substring(1);      
			// 获得和属性对应的setXXX()方法的名字      
			String setMethodName = "set" + firstLetter + fieldName.substring(1);      

			// 获得和属性对应的getXXX()方法      
			Method getMethod = classType.getMethod(getMethodName, new Class[] {});      
			// 获得和属性对应的setXXX()方法      
			Method setMethod = classType.getMethod(setMethodName, new Class[] { field.getType() });      

			// 调用原对象的getXXX()方法      
			Object value = getMethod.invoke(object, new Object[] {});      
			System.out.println(fieldName + ":" + value);      
			// 调用拷贝对象的setXXX()方法      
			setMethod.invoke(objectCopy, new Object[] { value });      
		}      
		
		return objectCopy;      
		
	}      
	
	public static void main(String[] args) throws Exception {
		
		Customer customer = new Customer("Tom", 21);      
		customer.setId(new Long(1));      

		Customer customerCopy = (Customer) new ReflectTester().copy(customer);      
		System.out.println("Copy information:" + customerCopy.getId() + " "     
		+ customerCopy.getName() + " " + customerCopy.getAge());      

		
		
	}


}
class Customer {  
	
	private Long id;      
	private String name;      
	private int age;      

	public Customer() {      
	}      

	public Customer(String name, int age) {      
	this.name = name;      
	this.age = age;      
	}      

	public Long getId() {      
	return id;      
	}      

	public void setId(Long id) {      
	this.id = id;      
	}      

	public String getName() {      
	return name;      
	}      

	public void setName(String name) {      
	this.name = name;      
	}      

	public int getAge() {      
	return age;      
	}      

	public void setAge(int age) {      
	this.age = age;      
	}      
}   

